Electric‐Field‐Induced Alignment of Functionalized Carbon Nanotubes Inside Thermally Conductive Liquid Crystalline Polyimide Composite Films
Northwestern Polytechnical University · Health First · +1 more institution
Abstract
Abstract The positive liquid crystals, 4′‐heptyl‐4‐biphenylcarbonitrile (7CB), are used to functionalize carbon nanotubes (LC‐CNT), which can be aligned in the liquid crystalline polyimide (LC‐PI) matrix under an alternating electric field to fabricate the thermally conductive LC‐CNT/LC‐PI composite films. The efficient establishment of thermal conduction pathways in thermally conductive LC‐CNT/LC‐PI composite films with a low amount of LC‐CNT is achieved through the oriented alignment of LC‐CNT within the LC‐PI matrix. When the mass fraction of LC‐CNT is 15 wt %, the in‐plane thermal conductivity coefficient ( λ ∥ ) and the through‐plane thermal conductivity coefficient ( λ ⊥ ) of the LC‐CNT/LC‐PI composite…
Citation impact
- FWCI
- 22.01
- Percentile
- 100%
- References
- 64
Authors
6- KRKunpeng Ruan
Northwestern Polytechnical University, Health First
- XSXuetao Shi
Northwestern Polytechnical University, Health First
- YZYali Zhang
Northwestern Polytechnical University
- YGYongqiang GuoCorresponding
Northwestern Polytechnical University, Beihang University
- XZXiao Zhong
Northwestern Polytechnical University
Topics & keywords
- Materials science
- Carbon nanotube
- Polyimide
- Composite number
- Composite material
- Electrical conductor
- Mass fraction
- Liquid crystal